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SUBJECT

DATE

Test E Two-Filter Fuel System

July 2013

Additions, Revisions, or Updates
Publication Number / Title

Platform

Section Title

Change

DDC-SVC-MAN-0084

DD Platform

Test-E - Two-Filter Fuel
System

Updating fuel injector hold-down bolt steps 10 and 11.

All information subject to change without notice.

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Copyright © 2013 DETROIT DIESEL CORPORATION

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2 Test-E - Two-Filter Fuel System

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Test-E - Two-Filter Fuel System

NOTE: This test is only to be performed if fuel is found in the Exhaust Gas Recirculation (EGR) hot pipe.
WARNING: EXPLOSION
The air intake manifold contains combustible gas. To avoid injury from explosion, do not connect
the air inlet manifold to any devices or lines external to the manifold.
1. Remove and inspect the intake manifold temperature sensor, inlet manifold pressure (boost) sensor and charge air
cooler outlet temperature sensor (if equipped) for signs of damage to the sensor tips. Are any sensor tips damaged?
a. Yes; Replace the damaged sensor(s). Using DDDL 7.X or newer, record ALL fault codes and dates the fault
codes occurred. Go to step 2.
b. No; Using DDDL 7.X or newer, record ALL fault codes and dates the fault codes occurred. Go to step 2.
NOTE: Soot, oil or fuel in the air intake system can indicate the engine ran backwards.
WARNING: PERSONAL INJURY
To avoid injury, never remove any engine component while the engine is running.

2. Inspect the Charge Air Cooler (CAC), CAC piping, turbocharger inlet and air filter for signs of soot, oil or fuel. Is soot,
oil or fuel present?
a. Yes; clean all soot, oil or fuel from the CAC, CAC piping, turbocharger inlet and air filter housing. Replace the
air filter and Go to step 4.
b. No; Go to step 3.
NOTE: When SPN 100/ FMI 1 Engine Oil Pressure Low, SPN 636/ FMI 2 No Match of Camshaft and Crankshaft
Signals, SPN 723/ FMI31 Reverse Engine Rotation Detected or SPN1636/ FMI 4 Intake Manifold Temperature
Circuit Failed Low are present in DDDL, this can indicate the engine ran backwards.
3. Has SPN 100/ FMI 1 Engine Oil Pressure Low occurred in the last 30 days or 5000 miles?
a. Yes; Go to step 4.
b. No; Go to step 5.
4. Remove all seven main bearings and six connecting rod bearings. Inspect the bearings for damage. Refer to section
"Inspection of the Main and Connecting Rod Bearing in Chassis"Is any damage present?
a. Yes; Replace all damaged components, then Go to step 5.
b. No; Reinstall all bearings, then Go to step 5.
5. Drain one quart of fuel from the fuel filter module into a clear container. Measure the amount of water in the fuel. Is the
water greater then half the amount of fuel?
a. Yes; drain and clean all fuel tanks per OEM guidelines. Go to step 6.
b. No; Go to step 6.
NOTE: Crystallization or rust on the fuel filters or in the fuel filter module is a result of Diesel Exhaust fluid (DEF)
contamination.
6. Remove all fuel filters from the engine and the frame-mounted filter (if equipped). Allow the fuel filters to dry for one
hour. Inspect the fuel filters for crystallization. Is crystallization present on the fuel filters?
a. Yes; contact the Detroit™ Customer Support Center at (800) 445-1980.
b. No; Go to step 7.
7. Review the fault codes from DDDL. Is SPN 190/ FMI 0 Engine Speed High present?
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All information subject to change without notice.

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a. Yes; Go to step 8.
b. No; Go to step 9.
NOTE: If any parts are missing from the engine brake rocker arms they MUST be found and reinstalled or
replaced if damaged.
8. Review the extended fault data for SPN 190/FMI 0 Engine Speed High in DDDL. Is the engine speed 3000 rpm or
higher?
a. Yes; replace both camshafts. Inspect the engine brake rocker arms for loose actuator piston retainers and loose or
missing return springs. Repair as necessary; Go to step 10.
b. No; Go to step 9.
9. Check the maximum engine speed on DDEC reports. Is the maximum engine speed 3000 rpm or higher?
a. Yes; replace both camshafts. Inspect the engine brake rocker arms for loose actuator piston retainers and loose or
missing return springs. Repair as necessary; Go to step 10.
b. No; Go to step 12.
NOTE: Loose or failed fuel injector hold-down bolt(s) are normally caused by hydro-locking of the cylinder.
Evidence of loose fuel injector hold-down bolt(s) can be identified by carbon/soot deposits above the fuel injector
copper washer on the fuel injector body.
10. Paying attention to any loose fuel injector hold down bolt(s), remove the fuel injectors from the engine. Were any fuel
injector hold-down bolt(s) loose?
a. Yes; Go to step 11.
b. No; Go to step 12.
11. Inspect the fuel injector(s) with loose fuel injector hold-down bolt(s) for carbon/soot deposits above the fuel injector
copper washer. Do any of the fuel injector(s) with loose fuel injector hold-down bolt(s) have carbon/soot deposits
above the copper washer?
a. Yes; replace the fuel injector cup(s) on the cylinders that had a loose fuel injector hold-down bolt and carbon/soot
deposits above the copper washer, then Go to step 12.
b. No; Go to step 12.
12. Perform a cylinder leak-down test. Refer to section "Cylinder Leak Down Test " Did all cylinders pass the leak-down
test?
a. Yes; Go to step 13.
b. No; Repair as necessary, then Go to step 13. If assistance is required in determining the proper repair path,
contact the Detroit™ Customer Support Center at (800) 445-1980.
13. Inspect the fuel injector tips for damage. Are any fuel injector tips damaged?
a. Yes; Replace the EGR cooler. Replace all six fuel injectors. Go to step 14.
b. No; Clean the EGR cooler. Replace all six fuel injectors. Go to step 16.
14. Inspect the turbocharger for damage. Is any damage present?
a. Yes; repair as necessary, then For DD13 engine, Go to step 16. For DD15/16 engines, Go to step 15.
b. No; for DD13 engine, Go to step 16. For DD15/16 engines, Go to step 15.
15. Inspect the axial power turbine for damage. Is any damage present?
a. Yes; repair as necessary, then Go to step 16.
b. No; Go to step 16.
16. Inspect the EGR delta pressure venturi ports and EGR delta pressure sensor ports for carbon deposits. Are any deposits
present?
a. Yes; clean the carbon deposits, then Go to step 17.
b. No; Go to step 17.
NOTE: Do not remove the intake manifold unless there is solid debris that cannot be cleaned with the intake
manifold in place.
NOTE: A fuel injector failure may result in an excessive amount of fuel contamination in the lubricating oil.

All information subject to change without notice.

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Copyright © 2013 DETROIT DIESEL CORPORATION

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2 Test-E - Two-Filter Fuel System
17. Remove the cold boost pipe or composite cold boost pipe from the intake manifold. Using a mirror and flashlight,
inspect the inside of the intake manifold for debris. Is there any debris?
a. Yes; clean the inside of the intake manifold. Replace the lubricating oil and oil filter, then Go to step 18.
b. No; replace the lubricating oil and oil filter, then Go to step 18.
18. Review the fault codes. Is SPN 3250/FMI 0 DOC Outlet Temperature Very High or SPN 3246/FMI 0 DPF Outlet
Temperature Very High present?
a. Yes; Replace the DOC(s) and DPF(s). If equipped, replace the SCR catalyst. Then Go to step 20.
b. No; Go to step 19.
NOTICE: Improper cleaning of the exhaust system may result in damage to the Aftertreatment System (ATS).
19. Remove the DPF(s) from the ATS. Inspect the DPF(s) and ATS for raw fuel. Is any raw fuel present in the DPF(s) or
ATS?
a. Yes; Clean the exhaust system. For 1-BOX™ emissions package, replace both the DPF and the DOC/SCR
module assembly. Prime the fuel system. Go to step 22.
For all others, let the ATS drain for more then 10 hours. Reassemble and install the ATS. Prime the fuel system.
Go to step 20.
b. No; Clean the exhaust system. Prime the fuel system. Go to step 20.
NOTICE: Running the engine at high idle for one hour MUST be done before performing a parked regeneration.
Failure to do so may result in damaging the aftertreatment system.
WARNING: PERSONAL INJURY
To avoid injury before starting and running the engine, ensure the vehicle is parked on a level
surface, parking brake is set, and the wheels are blocked.
20. Run the engine at high idle for one hour. Check for leaks and fault codes. Are any leaks or fault codes present?
a. Yes; Repair as necessary, then Go to step 21.
b. No; Go to step 21.
21. Is any smoke coming from the tailpipe?
a. Yes; Run the engine at high idle for a maximum of three hours or until the exhaust system stops smoking, then
Go to step 22.
b. No; Go to step 22.
NOTE: Increasing the accelerator pedal position to 100% will cancel the parked regeneration and maximize
airflow across the ATS for cooling purposes.
WARNING: HOT EXHAUST
During parked regeneration the exhaust gases will be extremely HOT and could cause a fire if
directed at combustible materials. The vehicle must be parked outside.
22. Perform a parked regeneration. Monitor Diesel Oxidation Catalyst (DOC) outlet temperature values, Diesel Particulate
Filter (DPF) outlet temperature values and Selective Catalytic Reduction (SCR) outlet temperature values. If any of
these temperature values rise above 650°C (1200°F), increase the accelerator pedal position to 100% for one minute.
Are any fault codes present or did the parked regeneration have to be cancelled?
a. Yes; if fault codes SPN3250/ FMI 0 or SPN 3246/ FMI 0 are present, replace the DOC(s) and DPF(s). If
equipped, replace the SCR catalyst, then Go to step 24.
b. If fault codes SPN3250/ FMI 0 or SPN 3246/ FMI 0 are not present and the parked regeneration was cancelled,
Go to step 23.
c. No; repairs are complete, Test E - Two-Filter Fuel System has ended.

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All information subject to change without notice.

Copyright © 2013 DETROIT DIESEL CORPORATION 7 02-13

7 02-13

WARNING: HOT EXHAUST
During parked regeneration the exhaust gases will be extremely HOT and could cause a fire if
directed at combustible materials. The vehicle must be parked outside.
23. After a 30 minute engine cold soak from the first parked regeneration, perform a second parked regeneration. Monitor
(DOC) outlet temperature values, (DPF) outlet temperature values and (SCR) outlet temperature values. Did any of
these temperature values rise above 650°C (1200°F)?
a. Yes; Replace the DOC(s) and DPF(s). If equipped, replace the SCR catalyst , then Go to step 24.
b. No; repairs are complete; Test E - Two-Filter Fuel System has ended.
WARNING: HOT EXHAUST
During parked regeneration the exhaust gases will be extremely HOT and could cause a fire if
directed at combustible materials. The vehicle must be parked outside.
24. Perform a parked regeneration with new aftertreatment parts. Did the parked regeneration complete with no issues?
a. Yes; repairs are complete; Test E - Two-Filter Fuel System has ended.
b. No; contact the Detroit™ Customer Support Center at (800) 445-1980.

All information subject to change without notice.

7 02-13

Copyright © 2013 DETROIT DIESEL CORPORATION

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